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a circuit consists of two 495-k resistors in series with an ideal 120-v batterya calculate the potential drop across
a a force of 54 n is applied to an object and the object is observed to accelerate with an acceleration of 30 ms2 if
an object is projected horizontally with a speed of 12 ms and lands 120m from the launch site what vertical height was
a 210-kg box rests on a frictionless ramp with a 143deg slope the mover pulls on a rope attached to the box to pull it
a 7 g bullet has a speed of 270 ms and embeds itself into a 600 g block the block is initially at rest sitting on a
with what initial speed should a positive charge q be given such that if starting infinitely far away from a fixed
an object located at the origin and having a mass m explodes into three pieces having masses m4 m3 and 5m12 the pieces
a negative charge -q has a mass m and an initial velocity v but is infinitely far away from a fixed large positive
if the coefficient of friction between the sleds runners and snow is 0055 and the boy and sled together weigh 540 n how
an object with mass m and speed v relative to an observer explodes into two pieces one three times as massive as the
an elevator passenger is on her way down to the ground floor her mass is 50 kg and the normal force between her feet
the force of the wind on a small sail boat is 500 n northeast 45 degrees n of e if the drag if the keel is 250 n acting
after you pick up a spare your bowling ball rolls without slipping back toward the ball rack with a linear speed of v
in tae-kwon-do a hand is slammed down onto a target at a speed of13ms and comes to a stop during the44ms collision
the wavelength of the x-radiation we use in our diffractometer is 154angstroms what is the ratio of the energy of these
a total current of 23 ma flows through an infinitely long cylinderical conductor of radius 4 cm which has an infinitely
two wires a and b of circular cross-section are made of the same metal and have equal lengths but the resistance of
a parallel-plate capacitor with plate are a and separation x has charges q and -q on its plates the capacitor is
an inductor l 350 mh a capacitor c 443 microf and a resistor r 570 are connected in series a 500 hz ac generator
a particle with a rest mass of m135gevc2 or 135x1011 evc2 decays into two particles which emerge back-to-back the
how many vectors may be added by the polygon method are other methods of vector addition limited to the number of
two small metal balls carrying a charge q are lying on an insulating surface a distance d apart on either side of the
a blue car with mass mc 4590 kg is moving east with a speed of vc 190 ms and collides with a purple truck with mass
a man throws a ball such that it strikes a wall of a building at the max height of its trajectory if it takes 115
a train sounds its horn as it approaches an intersection the horn can just be heard at a level of 54 db by an observer